Research Article
[Retracted] Recommending Crowdfunding Project: A Graph Kernel-Based Link Prediction Method for Extremely Sparse Implicit Feedback
Table 1
The value and the processing of nodes’ features.
| | Category | Variable name | Variable meaning | Variable assignment | Input processing |
| | Investor features | Numerical | investor_id | Investor ID | 0∼number of investors | One-hot | | num_campaigns | Number of posted projects | Actual number | One-hot | | num_comments | Number of comments | Actual number | One-hot | | num_contributions | Number of supported projects | Actual number | One-hot | | By type | Friends | Whether to show friends | 0, 1 | One-hot | | E-mail | Whether to show e-mail | 0, 1 | One-hot | | Ins | Whether to show ins | 0, 1 | One-hot | | Location | Country code and state code | Actual code | One-hot |
| | Project features | Numerical | project_id | Project ID | 0∼number of projects | One-hot | | creator_campaigns | Total number of projects posted | Actual number | One-hot | | tags_num | Number of tags for the project | Actual number | One-hot | | By type | money_categories | Currency type | 1∼6 | One-hot | | Location | Country code and state code | Actual code | One-hot |
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